Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa82f44363403cfc…

MALICIOUS

PDF

82.0 KB Created: 2021-10-06 12:51:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: b3d7d69140eeb4e93bf8773ab7f3bd06 SHA-1: 5f24ce6f621785bfdbb7afbe6119f04e99dbcd5e SHA-256: aa82f44363403cfcdcfb3afb38206c27e29166dae5b3e8cce064b45044d501b5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://coretry.ru/uplcv?utm_term=soccer+drills+for+7+year+olds PDF link annotation
    • http://japanbizkorea.com/userData/ebizro_board/file/zexexegipif.pdfIn PDF document text
    • http://hyeminshop.com/DATA/files/22282487454.pdfIn PDF document text
    • http://xinchenfast.com/upload/file/dakuzadunirutadevadawu.pdfIn PDF document text
    • http://erbaytag.com/resimler/files/lekemajedogil.pdfIn PDF document text
    • http://icsbc.ru/fuploader/file/92429992790.pdfIn PDF document text
    • https://drosamahetta.com/userfiles/file/zetetuvavaboruwoki.pdfIn PDF document text
    • https://nabijdefossa.nl/upload/files/26953411532.pdfIn PDF document text
    • http://bannermaul.com/userData/board/file/27190338280.pdfIn PDF document text
    • https://citytrafik.nu/images/file/39124434968.pdfIn PDF document text
    • https://kmkmekanik.com/upload/ckfinder/files/20404908933.pdfIn PDF document text
    • http://hissekurban.com/resimler/files/80755778864.pdfIn PDF document text
    • http://lnv-cnc.gr/userfiles/file/xexusepozim.pdfIn PDF document text
    • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/16142b65e22f9f---8774887328.pdfIn PDF document text
    • http://perevodvnegiloifond.ru/pict/file/rilulibidezofapiwer.pdfIn PDF document text
    • http://ubest.ru/images/file/56587692959.pdfIn PDF document text
    • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f105f183f6---96591125796.pdfIn PDF document text
    • http://asupuro.com/user_data/image/file/10199211734.pdfIn PDF document text
    • http://tarp.longi.tw/uploadfiles/wuvekopuxagokorusaz.pdfIn PDF document text
    • http://werder-ritter.de/UserFiles/File/jobobesesebimamonine.pdfIn PDF document text
    • http://www.armstrongre.com/files/files/96162305168.pdfIn PDF document text
    • http://greatwalledmond.com/ckfinder/userfiles/files/daniwotofagiz.pdfIn PDF document text
    • http://ageddfjtj.pretty-match.com/upload/files/pilerikupuvofekajat.pdfIn PDF document text
    • http://www.umadai.com/ckfinder/userfiles/files/kilabuwemakaliki.pdfIn PDF document text
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/161583826a72b3---fepugoxabimowawepinimadan.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d89e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD89E 18940 bytes
SHA-256: 93e61f5c0a33d4f166567826b756a019fb5c60ab7cc5420d8b237e9ef93a6db0
font_01_sfnt_off000109d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109D9 10504 bytes
SHA-256: 2b313955bdab8ff6a4fec91631b4656ca0cfe21e7f1f0552a7bd4ca23cfa891c
font_02_sfnt_off000121e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121E6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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